TRACHEARY ELEMENTS OF THE FERNS II. MORPHOLOGY OF TRACHEARY ELEMENTS; CONCLUSIONS
نویسندگان
چکیده
منابع مشابه
Cooperative lignification of xylem tracheary elements
The development of xylem tracheary elements (TEs)--the hydro-mineral sap conducting cells--has been an evolutionary breakthrough to enable long distance nutrition and upright growth of vascular land plants. To allow sap conduction, TEs form hollow laterally reinforced cylinders by combining programmed cell death and secondary cell wall formation. To ensure their structural resistance for sap co...
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The formation of tracheary elements in tissue culture has been regarded for some time as a model system for the study of differentiation in plants (Torrey et al., 1971). Tracheary elements are differentiated cells of the xylem characterized by dist inctively pat terned secondary cell walls. In the final cell maturation, the cell contents autolyze and the cell wall remains, forming the water-con...
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Since their discovery, carbon nanotubes (CNTs) have been eminent members of the nanomaterial family. Because of their unique physical, chemical and mechanical properties, they are regarded as new potential materials to bring enormous benefits in cell biology studies. Undoubtedly, the first step to prove the advantages of CNTs is to understand the basic behavior of CNTs inside the cells. In a nu...
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As the first step toward understanding the involvement of endogenous brassinosteroids (BRs) in cytodifferentiation, we analyzed biosynthetic activities of BRs in zinnia (Zinnia elegans L. cv Canary Bird) cells differentiating into tracheary elements. The results of feeding experiments suggested that both the early and late C6-oxidation pathways occur during tracheary element differentiation. Ga...
متن کاملImaging cell wall architecture in single Zinnia elegans tracheary elements.
The chemical and structural organization of the plant cell wall was examined in Zinnia elegans tracheary elements (TEs), which specialize by developing prominent secondary wall thickenings underlying the primary wall during xylogenesis in vitro. Three imaging platforms were used in conjunction with chemical extraction of wall components to investigate the composition and structure of single Zin...
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ژورنال
عنوان ژورنال: American Journal of Botany
سال: 1963
ISSN: 0002-9122
DOI: 10.1002/j.1537-2197.1963.tb07224.x